Home / 2,132.18-3,198.20-671.30

Finding the Fourth Proportional to 2,132.18, 3,198.20 and 671.30

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Solution

The fourth proportional to 2,132.18, 3,198.20 and 671.30 is: 1,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.18 : 3,198.20 = 671.30 : x
  2. Step 2: Convert to fraction form
    2,132.18/3,198.20 = 671.30/x
  3. Step 3: Cross multiply
    2,132.18x = 3,198.20 × 671.30
  4. Step 4: Simplify right side
    2,132.18x = 2,146,951.66
  5. Step 5: Solve for x
    x = 2,146,951.66/2,132.18
  6. Step 6: Final answer
    x = 1,006.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.